

Performance Optimized · Datasheet
Performance Optimized Down Fire Wide Sealed 10" Shallow Sub Enclosure ResoNix GUS-10 · Single 10" Sealed enclosure
- Net volume
- 0.723 cu ft after displacement
- Max mounting depth
- 101.5mm / 3.996 in, ResoNix spec
- External dimensions
- 41 in W × 5.5 in H × 12 in D
- Front baffle
- 1.5 in double baffle, outer layer machined as a flush recess
- Alignment: 0.723 cu ft net. Qtc 0.648, Fc 36.2 Hz, F3 39.7 Hz (Dual 4-Ohm); Qtc 0.568, Fc 34.0 Hz, F3 44.3 Hz (Dual 2-Ohm)
- Height: Set by the 3.996 in mounting depth, not a volume target: more air than the standard box, lower Qtc
- Driver: ResoNix GUS-10 D2 or D4, 500W RMS, 18mm Xmax, vented rear cone, pole vent may be fully blocked
- Standoffs: Included, ResoNix specifies 55mm from baffle surface to the floor
- Cabinet: 41"W x 12"D x 5.5"H in down fire position, excludes standoffs, square corners
Spec of record
Technical specifications
| Series | Proline X Performance Optimized Down Fire Wide |
|---|---|
| Compatible Driver | ResoNix GUS-10, Dual 2-Ohm or Dual 4-Ohm. Direct fit, no other driver |
| Enclosure Type | Sealed, down fire, floor coupled |
| Intended Fitment | Under the rear seat of trucks and SUVs, or narrow cargo floors, where depth is the limiting dimension |
| Chamber Configuration | Single chamber, windowed U-brace, one side-mounted terminal cup |
| External Width | 41 in |
| External Depth | 12 in |
| External Height | 5.5 in, measured in down fire position, excludes standoffs |
| Internal Volume, Gross | 0.760 cu ft |
| Internal Volume, Net Acoustic | 0.723 cu ft after displacement |
| Alignment, Dual 4-Ohm | Qtc 0.648, Fc 36.2 Hz, F3 39.7 Hz anechoic |
| Alignment, Dual 2-Ohm | Qtc 0.568, Fc 34.0 Hz, F3 44.3 Hz anechoic |
| Height Set By | Driver clearance: 0.75 in above the motor |
| Comparison, Standard Down Fire | 30 x 15 x 5.125 in, 0.59 cu ft net |
| Woofer Opening | 235.08mm / 9.255 in, direct fit |
| Mounting Depth | 101.5mm / 3.996 in, ResoNix spec |
| Driver Outer Diameter | 277.5mm with gasket |
| Min Front Clearance | 55mm from baffle surface, ResoNix spec |
| ResoNix Target For 0.707 Qtc, D4 | 0.6 cu ft |
| Driver Fs | 21.76 Hz (D4) / 20.37 Hz (D2) |
| Driver Qts | 0.39 (D4) / 0.34 (D2) |
| Driver Vas | 36.035 L (D4) / 36.634 L (D2) |
| Driver Sd | 346.4 cm² |
| Driver Xmax | 18mm one way linear, Klippel verified |
| Driver Power Handling | 500 W RMS. Do not exceed |
| Driver Cone | Nomex honeycomb core with carbon fiber facing |
| Driver Voice Coil | Copper on titanium former |
| Rear Venting | Vented rear cone assembly. Pole vent may be fully obstructed, ResoNix spec |
| Driver Displacement | 0.031 cu ft, published by ResoNix |
| Material | Langboard Elite 3/4 in MDF |
| Construction | ShopSabre CNC cut, V-groove and dado joinery, windowed U-brace |
| Front Baffle | 1.5 in double baffle, outer layer machined as a flush recess |
| Corner Profile | Square, Down Fire series standard |
| Driver Mounting | 8/32 threaded inserts, stainless machine screws included |
| Terminal Cup | One Proline X ABS and carbon fiber composite, side mounted |
| Internal Wiring | 12 gauge OFC |
| Damping | Polyfill installed, light wall lining |
| Standoffs | Custom fit, included, shipped uninstalled. Hold ResoNix's required 55mm from the baffle surface to the floor |
| Carpet | Plush black |
| Warranty | 1 Year Limited |
| Built In | Tullahoma, Tennessee |
Modelled response
Performance in this enclosure
01Is it a sealed driver?
Efficiency bandwidth product places the motor before anything else is decided.
02What the box does to it
0.723 cu ft against a 36.6 L Vas.
03The watts that reach Xmax (in this enclosure)
Travel scales with the square root of power, so there is one wattage that puts the cone exactly on 18.0 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.
| Param | Value | Unit | Note |
|---|---|---|---|
| Fs | 20.37 / 21.76 | Hz | free-air resonance |
| Qts | 0.340 / 0.390 | D2 / D4 | |
| Vas | 36.63 / 36.03 | L | equivalent compliance |
| Sd | 346.4 | cm² | effective piston area |
| Xmax | 18 | mm | one-way linear travel |
| Pe | 500 | W | continuous RMS |
| SPL | 81.4 | dB | 1 W / 1 m, derived from T/S |
Driver parameters as published by resonixsoundsolutions.com. Curves computed against this enclosure’s actual net airspace.
From the shop floor
Installer's take
The single GUS-10 in a cabinet 12 inches deep instead of 15. 41 long, 5.5 tall before standoffs.
The height is set by the driver, not by a volume target. The 3.996 inch mounting depth needs 0.75 inch clear above the motor, and at that height this footprint holds 0.723 cubic feet net against 0.59 in the standard box. More air, lower Qtc, which is the safe direction.
Result: Dual 4-Ohm: Qtc 0.648, Fc 36.2 Hz, F3 39.7 Hz. Dual 2-Ohm: Qtc 0.568, Fc 34.0 Hz, F3 44.3 Hz. Both are well damped; the D4 is the better match to this cabinet.
Standoffs are not optional. ResoNix requires 55mm from the baffle surface to the floor. Set it flat on the carpet and you restrict the driver.
500 watts RMS, and ResoNix means it. Overpower damage is not warranty work.
Before you order
Questions
Why is this cabinet 41 inches wide instead of 30?
Because it is only 12 inches deep. The standard Performance Optimized Down Fire platform is 30 wide by 15 deep, and this application needs a cabinet that fits a space three inches shallower than that.
The airspace has to come from somewhere, so the cabinet runs 41 inches long instead of 30 and stands 5.5 inches tall. If you have 15 inches of depth, the standard cabinet is the pick; if your space is long and shallow, under a rear bench or on a narrow cargo floor, this is the shape that fits.
How does this compare to the standard 30 x 15 ResoNix GUS-10 enclosure?
The standard cabinet is 30 x 15 x 5.125 inches and holds 0.59 cubic feet net. This cabinet is 41 x 12 x 5.5 and holds 0.723 cubic feet net, 0.133 cubic feet more, because its height is set by the GUS-10's mounting depth rather than by a volume target. More air means a lower, more damped Qtc, which is the safe direction. The choice is about shape: the standard box needs 15 inches of depth, this one needs 12 inches of depth and 41 inches of run.
What alignment does this cabinet give, and what is the low-frequency extension?
The cabinet height is fixed by the GUS-10's mounting depth, and the airspace follows from it. At 0.723 cubic feet net: Dual 4-Ohm: Qtc 0.648, Fc 36.2 Hz, F3 39.7 Hz. Dual 2-Ohm: Qtc 0.568, Fc 34.0 Hz, F3 44.3 Hz. Both coil versions land below the 0.707 reference, the D4 closer to it.
Those are anechoic figures. Firing into the floor, the sealed rolloff meets rising cabin gain, so in-car response runs deeper than the numbers above.
How much power should I run to the GUS-10?
500 watts RMS, and not more. ResoNix states that the GUS series is not deliberately underrated and that burnt voice coils or damage from bottoming out are not covered under warranty.
An amplifier capable of more output is fine so long as delivered power is limited to 500 watts. The driver is dual voice coil in Dual 2-Ohm and Dual 4-Ohm versions, so final impedance is set at the driver; confirm it against your amplifier's minimum stable load.
Why does this enclosure come with standoffs?
Because ResoNix specifies a minimum clearance in front of the cone, and on a down fire enclosure the thing in front of the cone is the floor. Their requirement for the GUS-10 is 23mm between the surround and the obstruction, or 55mm measured from the baffle surface.
The custom-fit standoffs hold that clearance. Setting a down fire GUS enclosure flat on the floor would restrict the driver. They are a required part of the design, not an accessory.
Where is the terminal cup located on a down fire enclosure?
Side mounted. Every Proline X Performance Optimized enclosure uses a side mounted terminal cup, and on a down fire cabinet that keeps the connection accessible with the enclosure installed, since the baffle faces the floor. The cup is our Proline X ABS and carbon fiber composite unit, recessed, with stainless hardware, copper ring terminals, and pre-wired 12 gauge OFC.
How is this enclosure built?
V-groove and dado joinery, CNC cut on ShopSabre routers from Langboard Elite MDF. Every panel joint is a machined interlocking groove that mechanically locks the panels before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square, the Down Fire series standard, with no radii.
The front baffle is a double layer at 1.5 inches, with the outer layer machined as a flush recess so the driver bolts to the inner layer. A windowed U-brace ties the long panels together across the 41 inch span. Custom-fit standoffs are included to hold ResoNix's required floor clearance. Polyfill is installed as a light wall lining. Assembled and inspected in Tullahoma, Tennessee.
Is the ResoNix GUS-10 subwoofer included with this enclosure?
No. This listing is for the enclosure only, and includes the custom-fit standoffs. The GUS-10 is purchased directly from ResoNix Sound Solutions. The cutout and mounting depth are direct fit for either the Dual 2-Ohm or Dual 4-Ohm version.
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